Insulator for electric wires.



Patented Mar. l2, I90l.

M. HARLDE.

INSULATOR FOR ELECTRIC WIRES.

(Appliclfion filed Sept. 19, IQOOJ (No Model.)

WITNESSES MNVENTOI? A77'0/7/VEY UNITED STATES PATENT FFICE.

MORTON HARLOE, OF HAl/VLEY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO WILTON S. BLOES, OF PEOKVILLE, PENNSYLVANIA.

INSULATOR FOR ELECTREG WlRES.

SPECIFICATION forming part Of Letters Patent NO. 669,691, dated March 12, 1901 Application filed September 19, 1900. fierial No. 30,489. (No model.)

To all whom it may concern: shank E, adapted to engage with theinwardly- Be it known that I, MORTON HARLOE, a citiscrew-threaded portion F of the u pper or main zen of the United States, residing at Hawley, piece A, which piece is adapted to be screwed in the county of Wayne and State of Pennfast to the base-piece B and to turn there- 55 sylvania, have invented certain new and usewith after insertion of the screw 0 to its place,

ful Improvements in Insulators for Electrical the said screw being the only means of secur- Vires, of which the following is a specificaing the insulator to its position. The main tion, reference being had therein to the 210- piece is particularly constructed with a circompanying drawings. .cuitous groove or cut G, winding in a zigzag 60 1o Thisinvention relates to insulators for elecshape partially under the cap H of the main trical conduction-wires, and has forits objects part and also cutting under projections l I to provide such insulator in a simplified form, of the main piece A. This groove in the parto dispense with the necessity of tying the ticular form of my invention here shown is insulated wire, and to provide greater presdesigned to make three angles in the Wire se 65 ervation for the wire insulated and other obcured to the insulator, one main angle J curvjects, as herein set forth,and more fully pointing around the stud K and minor angles jj, ed out in the claims. where the Wire L is pressed under the pro- In setting forth the invention reference is jections I I. The main portion of my insuhad to the accompanying drawings, forming lator is also provided with a neck M, to which 70 a part of this specification, in which similar a tying-wire may be secured and the wire atcharacters of reference denote like and corretached as in the ordinary form of insulators sponding parts in the several views. now in use. This groove is also particularly Figure 1 is a side elevation of parts of one required where it is desired to run a branch of my insulators, the upper and lower parts wire from the main at any point of insulation. 75 being partially separated to more fullyshow The tension may thus be applied to the main the construction thereof. Fig. 2 is a view, body of the insulator without straining the partly in cross-section, taken on the line 00 to upper part thereof, which is intended for the of Fig. 1 when all the parts are assembled. main line only. Fig. 3 is a top view of one of my insulators, In the substitute form of my insulator 80 o partly in cross-section, on the lineyy of Figs. (shown in Figs. 4 and 5 specially) the main 2 or 5 and showing in dotted lines one of the part thereof is hollowed out at N in order to motions of the device requisite in fastening economize in the material for making the the wires thereto. Fig. 4 is a substitute form same and the fastening-screw O extends from of my device when constructed from a solid the top of the insulator through to the base, 85 piece of glass or porcelain instead of being being fastened as described for the form in provided with a wooden standard, as in Figs. which the base is made of Wood and remain- 1 and 2. Fig. 5 is a view, partly in cross-secing slidable or revoluble on the screw for the tion, taken on the line If u of Fig. a. Fig. 6 same purpose. This form dispenses with the is a general view of my device in use, showwooden base entirely. In both forms the ingo 4o ingitin bothhorizontal and vertical positions. sulator is petticoated, as at Pand P. In the Referring to Figs. 1 and 2, my insulator is substitute form the petticoat is constructed constructedfrom two main pieces A and B, by the groove Q extending around the main the base-piece B being preferably constructed body of the insulator, forming the overhangfrom wood and having a flat side or bottom ing portion or petticoat P. 5 adapted to sit on aflat surface and to remain The operation of the device may now be slidable thereon during the use of the device. more fully explained. In connecting a wire This base-pieoe B is screwed to the surface of to the insulator the insulator is swung sideits support by means of a screw 0, which eX- wise on the vertical screw 0 as a center until tends downward through it at one side of its the wire L may be laid into one portion of the I00 center through the hole B. This base-piece groove G, heretofore described, as shown in is further provided with a screw-threaded Fig. 3. The insulator is then swung in the direction of the arrow, the projection 1 extending over the wire L and forming the bend j therein, this being at the taut side faced toward the already-fastened end of the wire L. The other loose end is now bent into the angle J, around the inner angle of the stud K, and pressed around into the opposite end of the groove G and under the projection Lwhen the hand may be released from the wire L Without danger of its slipping from its fastenings; but the insulator before the oppo site end of the wire is fastened will naturally sag or swing toward the point of greatest tension, which will be corrected whenthe next fastening in advance is made during the course of stringing the wires.

The crown or cap 11 has projecting ends it h, adapted to assist in guiding the wire into its place during the process of stringing. It also projects forward at h to form an overhanging projection to assist in keeping the wire L in its place during any great agitation thereof. It overhangs sutficiently so that, taken in connection with the projections I and I, the wire after being once inserted cannot be removed without either breaking off the projections or finding considerable more slack than is likely to be left by accident in stringing the wire.

This specification discloses two particular forms of insulator embodying my invention. It is evident that many of the details may be varied without departing from the general spirit thereof.

Having thus described my invention,what I claim, and desire to secure by Letters Patcut, is-

1. An insulator having a body portion with means for mounting it to swing, the body portion having located thereon a stud capped with an overhanging flange, a circuitous groove winding between said capped stud and oppositely-directed projections, into which groove the wire to be insulated is adapted to be bent and to be retained by the projections and capped stud aforesaid, and an upwardlycut groove extending around the body portion forming a petticoat thereon, substantially as specified.

2. An insulator having a body portion constructed from two separate pieces, alower or base piece adapted to be mounted eccentrically by a vertical screw or pin securing the same loosely to any suitable support, together with a top piece adapted to be screwed to the base-piece aforesaid and rigidly fastened thereto and adapted to swing therewith eccentrically in the operation of lining the wire to be insulated, the said top piece being provided with a circuitous groove cut through the body thereof, and the wire to be insulated adapted to be secured within the said groove, substantially as specified.

3. An insulator having a body portion constructed from an upper and lower piece adapted to be screwed together and means formed on the upper body portion around which the wires to be insulated may be bent to secure the wire, such means being capable of engaging the wire, to bend the same as the insulator is swung first to one side and then to the other.

a. The herein-described insulator consisting of a body portion having an eccentric vertical bore therethrough and a pin adapted to pass therethrough and secure the same, the said body portion being provided with a neck adapted to receive tying-wire, and also with a circuitous groove and projections on the body thereof adapted to secure and hold the main or line wire in combination with an upwardlycut groove forming a petticoat on the said body portion, substantially as specified.

In testimony whereof I ailix my signature in presence of two witnesses.

MORTON HARLOE.

Witnesses GEO. GELATT, D. Gr. MORAN. 

